Given :
An object 50 cm high is placed 1 m in front of a converging lens whose focal length is 1.5 m.
To Find :
the image height (in cm).
Solution :
By lens formula :

Here, u = - 100 cm
f = 150 cm

Now, magnification is given by :

Therefore, the image height is 3 m or 300 cm.
Sound waves are a type of classical waves and so they transport only energy without transporting matter through the medium.
Answer:
Tu mujhe banaye ga face dekh aapna mirror me